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Heat Treatment Q195 ASTM A178 Welded Erw Boiler Tubes

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Heat Treatment Q195 ASTM A178 Welded Erw Boiler Tubes

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Brand Name :	New Era
Model Number :	ASTM A178
Certification :	ISO9001,TS16949
Price :	Negotiation
Payment Terms :	T/T
Supply Ability :	3000 tons/month
Delivery Time :	45 days

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Heat Treatment Q195 ASTM A178 Welded Erw Boiler Tubes

ASTM A178 Electric Resistance Welded Carbon Steel and Carbon Manganese Steel Boiler and Superheater Tubes

Material: Carbon steel and carbon manganese steel
Production: Electric Resistance Welding
Size range: O.D.: 12.7-127mm W.T.:0.9-9.1mm L: according to customer requirement

Applications: For Boilers, Superheaters, Heat-Exchangers, Condensers, Boiler flues, Superheater flues and Safe ends

Heat treatment:
After welding, all tubes are heat treated at a temperature of 1650℉ (900℃) or higher and followed by cooling in air or in the cooling chamber of a controlled atmosphere furnace.
Cold-Drawn tubes are heat treated after the final cold-draw pass at a temperature of 1200℉(650℃)or higher.

Chemical Properties

Element	Grade A,Low-Cabon Steel	Grade C,Medium-Carbon Steel		Grade D, Carbon-Manganese Steel
Carbon	0.06-0.18	0.35 Max		0.27Max
Manganese	0.27-0.63	0.80Max		1.00-1.50
Phosphorus,Max	0.035	0.035		0.030
Sulfur,Max	0.035	0.035		0.015
Silicon	-	-		0.10 min
Mechanical Properties	Grade A	Grade C	Grade D
Tensile Strength:min ksi(Mpa)	47(325)	60(415)	70(485)
Yield Point:min ksi(Mpa)	26(180)	37(255)	40(275)
Elongation	≥35%	≥30%	≥30%

Heat Treatment Q195 ASTM A178 Welded Erw Boiler Tubes

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